(B) $(i)$ Through the process of photosynthesis,green plants convert atmospheric $CO_2$ into glucose,thereby fixing carbon into organic compounds.$(ii

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By photosynthesis and formation of carbonate shells by marine animals

(B) $(i)$ Through the process of photosynthesis,green plants convert atmospheric $CO_2$ into glucose,thereby fixing carbon into organic compounds.$(ii)$ Many marine organisms use carbonates dissolved in sea water to construct their shells and skeletons,effectively sequestering carbon from the environment.

Class 9 Science NATURAL RESOURCES Biogeochemical Cycles

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How is carbon dioxide fixed in our atmosphere in two ways?

A
By photosynthesis and respiration
B
By photosynthesis and formation of carbonate shells by marine animals
C
By combustion and respiration
D
By volcanic activity and photosynthesis

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Class 9 Questions

Class 9

Science Questions

Chapter

NATURAL RESOURCES

Subtopic

Biogeochemical Cycles

The process of nitrogen-fixation by bacteria does not take place in the presence of

Easy

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With the help of a labelled diagram,show the carbon cycle in nature. Describe the two ways in which carbon dioxide is fixed in the environment.

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State whether the following statement is True or False:
Nitrogen gas makes up $78 \%$ of our atmosphere and nitrogen is also a part of many molecules essential to life like proteins,nucleic acids ($DNA$ and $RNA$) and some vitamins.

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Name the various organisms involved in the nitrogen cycle.

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State whether the following statement is True or False:
Plants generally take up nitrates and nitrites and convert them into amino acids which are used to make carbohydrates.

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How is carbon dioxide fixed in our atmosphere in two ways?

Similar Questions

The process of nitrogen-fixation by bacteria does not take place in the presence of

With the help of a labelled diagram,show the carbon cycle in nature. Describe the two ways in which carbon dioxide is fixed in the environment.

State whether the following statement is True or False:Nitrogen gas makes up $78 \%$ of our atmosphere and nitrogen is also a part of many molecules essential to life like proteins,nucleic acids ($DNA$ and $RNA$) and some vitamins.

Name the various organisms involved in the nitrogen cycle.

State whether the following statement is True or False:Plants generally take up nitrates and nitrites and convert them into amino acids which are used to make carbohydrates.

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State whether the following statement is True or False:
Nitrogen gas makes up $78 \%$ of our atmosphere and nitrogen is also a part of many molecules essential to life like proteins,nucleic acids ($DNA$ and $RNA$) and some vitamins.

State whether the following statement is True or False:
Plants generally take up nitrates and nitrites and convert them into amino acids which are used to make carbohydrates.